def suggest(self, model_clz, query, limit=10, offset=0, order=None, ascending=True):
"""
Suggest terms that would possibly yield more relevant results
for the given query.
"""
self.database.reopen()
enq = Enquire(self.database)
enq.set_collapse_key(DOC_ITEM_ID)
if order is not None:
if issubclass(type(order), basestring):
order = self.sort_names.index(order)
if order == -1:
raise TypeError("There is no sort name %s" % order)
enq.set_sort_by_value(order, ascending)
else:
enq.set_sort_by_relevance()
query_parser = self._query_parser()
query = query_parser.parse_query(query)
query = self._add_model_query(query,model_clz)
log.debug(query)
enq.set_query(query)
mset = enq.get_mset(offset, limit)
rset = RSet()
for m in mset:
rset.add_document(m[MSET_DID])
eset = enq.get_eset(limit, rset)
for item in eset.items:
yield (item[0].decode('utf8'), item[1])
